Error message 'cycle _time' 'output_pin driver_fan'

General Discussion
1

Basic Information:

Printer Model: Ender 3 Pro w/ Co Print Chroma set
MCU / Printerboard: Ender-3 pro 4.2.7 mainboard
Host / SBC
klippy.log

Fill out above information and in all cases attach your klippy.log file (use zip to compress it, if too big). Pasting your printer.cfg is not needed
Be sure to check our “Knowledge Base” Category first. Most relevant items, e.g. error messages, are covered there

Describe your issue:

I am trying to connect the Co Print Chroma pad to my Ender 3 Pro. I have upgraded the mother board and flashed the firmware. I get this message on my Chroma pad: Klipper report: ERROR

Option ‘cycle_time’ in secgtion ‘output_pin driver_fan’ must have a maximum of 3.0 Once the underlying issue is corrected uste the “RESTART” command to reload the config and restart the host software. Printer is halted.

Can anyone help with this. I am a novice at this.

…

2

Hello @Mikejnh !

Please post as requested the klippy.log file.

3

Where would I find that. I’m running the Chroma Pad.

Thanks

4

According to their website, I have a bad feeling about this:

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1 Like
5

This site will only be able to provide VERY generic help. You should reach out to OEM support as they are the only ones that know how they have modified Klipper.

That said open your browser on your PC and enter the ChromaPad IP address and Mainsail should load. Click the [Machine] tab and use the dropdown to select “logs”.

If that doesn’t work then install WinSCP on your PC. Connect using the ChromaPad IP address and:

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And navigate to /home/cp/printer_data/logs/klippy.log

1 Like
6

I agree with cardoc, but…

CoPrint obviously doesn’t care about Open Source Software (OSS) and the connected licenses!

It’s a pity, that is not worth thinking about suing companies like that.

Maybe Sineos could add all the “funny” Klipper “Pads” to his wonderful Knowledge Base.
https://klipper.discourse.group/t/creality-sonic-pad-and-alternatives

They have an account on Github, but no Klipper fork for your ChromaPad.

Product site.

ChromaPad wiki isn’t helpfull at all for your problem.

I have no better advice as cardoc. @Mikejnh, I would not waste time with that thing, but that’s just my opinion. Sorry. How much did you spend for that junk?

7

Too much it seems. I thought it would be a fun project. I should have just invested in a better printer. Live and learn. Thank you all for your advice. I’m going to try flashing the marlin firmware to see if that helps.

8

How much for the ChromaPad?

Why? The Ender 3 Pro is a solid and well supported printer regarding Klipper.

…but Marlin is completely different regarding the architecture…

Using Marlin doesn’t need the ChromaPad of course. I started with Marlin, long ago. Switched to Klipper, because of the the architecture

https://klipper.discourse.group/t/klipper-architecture-ecosystem/

and the much, much better documentation.

1 Like
9

It’s still worth posting your Klippy.log. The error you originally posted about is a vanilla Klipper error about a “regular” klipper parameter error in printer.cfg. That CoPrint doesn’t publish their Klipper branch IS sh***y but doesn’t mean it can never work.

Unless you can get a refund you may as well try. If the errors keep piling up you can probably uninstall their branch and put stock Klipper and KlipperScreen on it. That won’t get the 4 motor drivers running for the feeder “extruders” but would still run a Klipper printer.

10

This is an easy fix (i know the kit well, it runs stock unmodifed klipper, it is updateing klipper from the shipped image version to current that breaks it)

go into the driver.cfg via mainsail
find the section that starts output_pin driver_fan

under that is cycle_time, change the value to 3

the error message luckily tells you what problem is and what the max value you can now use is :slight_smile:

The max value for cycle_time used to be 5, but changed to 3 somewhere around here

see docs change here

11

as a note here, the reason there is no klipper fork for the chromapad is because it runs mainline klipper, mainsail, etc. @cardoc tagging for awareness aswell

The only pad specific code is the screen software “chromascreen” which is a fork of octoscreen

12

Thank you for that input, i’m going to try that. But first I have to reinstall the software on the chroma pad. Have you had any experience with this. I hit the update button and the chroma pad froze. It then shut itself off and when I restarted it, the splash screens show up but then it goes into lines of squiggly data. Again, Thank you for the input.

13

ive not done it myself, but there is a link in the wiki for how to do so

i have been told that the text telling you its finished is very small at the bottom of the screen and not so obvious.

14

Thank you.

15

Did you check the links?

“Click for Software” link gives you a g*ogle drive link to a file named “CO-PRINT_23.11.0_amlogic_s905x3_jammy_5.15.133_2024.09.06_1545_Server.img.gz”. From the file name, I would guess the pad uses an SOC from https://www.amlogic.com/ with Ubuntu 22.04.4 LTS Jammy Jellyfish. I never heard from Amlogic before.

“USB Flash Application” gives you a picture search on g*ogle for “usb image tool”. Not quite helpful.

I guess you are right about running a genuine Klipper.

CoPrint seems to be located in Turkey.

What is the price for a ChromaPad? I just can find used ones on e*ay.

16

The pad on its own on their store page is $229, but plenty of discount codes around so ~$200, a fair bit more than the btt pad 7 or similar price to the sonic pad depending on where you look. Not sure how they compare in performance.
Guess they justify the extra cost in it having the stepper drivers/mcu built in to run 4x extruders for multi color printing.

I run another one of their products “kcm” and have 8 extruders on a Neptune 3 plus running stock klipper on a pi - really impressed with it

1 Like
17

Armbian actually.

---------------------------------------------------------------------------
Generated with Armbian(tm) build framework https://github.com/armbian/build
---------------------------------------------------------------------------
Vendor:         Armbian
Revision:       23.11.1
Board:          Lepotato
Kernel:         Linux  (current)
Build date:     28.11.2023
Sources:        https://github.com/armbian/build
Sources rev:    014eb55b5b
Authors:        https://www.armbian.com/authors
Maintainer:     Armbian Linux <info@armbian.com>
Support:        https://forum.armbian.com
---------------------------------------------------------------------------
1 Like
18

Thank you for all your advice. I’m bound and determined to get this running again. I’ve downloaded the file to reinstall the program on the Chroma pad. I’ve unzipped it and put it on a Flash drive. I’ve put it in the usb slot and turned the pad back on. I’m still getting the splash screen “co print” twice then the screen goes black, I then get some very tiny wording at the bottom of the screen. it then shifts to colors and wording from the top left slanting to the middle right of the screen. It will not take the program on the flash drive. Any suggestions?

Again, thank you for your help. I have contacted customer support at Co-print but they have not gotten back to me.

do you think I could access the pad with my Raspberry pi?

19

for something like that i would wait till you hear back from support, that sounds like something has gone wrong with it

20

Why not. Try

User Name: cp
Password : coprint